html, body {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: 0;
  padding: 0;
}

iframe {
  display: none;
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  border: none;
}

iframe.loaded {
  display: block;
}

.displaynone {
  display: none;
}
